Spec RB25/20 Stage 5 Clutch Kit

If you're building a high-horsepower RB25 engine and need a clutch that can handle serious power, the SPEC Stage 5 clutch kit is a solid option. This kit is designed for applications where you're pushing the limits, whether that's for track days, drifting, or just a very aggressive street build. It's a step up from milder performance clutches, offering a significant increase in torque capacity to keep your drivetrain hooked up when you lay down the power.

SPEC has put together a well-built package here. The Stage 5 features a sprung, multi-plate design, which helps to absorb some of the shock and vibration that can come with such a high-torque clutch. This means you get the holding power you need without the harshness you might expect from a clutch this aggressive. The sprung hub design is key to making this clutch manageable for daily driving, even with its substantial power handling capabilities. It includes a performance pressure plate and a high-performance friction disc, all engineered to work together for optimal engagement and durability under stress.

When installing a clutch like this, it's important to have all your components ready. This kit is designed as a direct replacement for the factory clutch assembly, but it's always a good idea to inspect your flywheel for wear or damage and consider resurfacing or replacing it at the same time. Proper break-in is also crucial for any performance clutch to ensure longevity and optimal performance. Follow the manufacturer's recommended break-in procedure carefully to seat the friction material correctly.